 The new Beta Secondary Standard (BSS2) is a complete irradiation
facility including beta sources, mechanics, electronics, sensors for air
pressure, temperature and humidity, and a personal computer to control all
irradiation parameters and to deliver the desired dose to the instrument under
test. Key features: Dosimeters can be positioned easily at the calibrated point in
the radiation field Irradiation table rotates in 5 degree steps for measuring polar
response High activity Pm-147, Kr-85 and Sr-90 sources - dose rate from
7μGy/s to 38 μGy/s with beam flattening filters in place Sr-90 source also calibrated without filter for source-detector
distances of 11, 30 and 50cm Each source contained in an individual shield with built-in
shutter - reduced operator dose, no special handling equipment needed Low activity Tl-204 source replaced by high activity Kr-85 source
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A member of the Neopharm Group